FREE: The Sims™ 4 (48 Game Hrs) + Titanfall (48 Game Hrs) + Battlefield 4 (168 Game Hrs) @ Origin
Once you've redeemed the 'Game Time' offer, you're free to start the time whenever you choose. This can even be after the promotion ends. Clearly it makes good sense to start playing when you've got the opportunity to play for a good portion of that time.
Download now, play later. Clock starts only when you start playing!
There's also the free open beta for Battlefield Hardline which started Tues Night(NZ) for 6 days. A good opportunity to play and decide if you like it before release.